2-Naphthalenesulfonic acid,6-amino-4-hydroxy-3-[[4-[[4-(phenylazo)-7-sulfo-1-naphthyl]azo]-6-sulfo-1-naphthyl]azo]-,trisodium salt (8CI), 2-Naphthalenesulfonicacid,5-[2-(7-amino-1-hydroxy-3-sulfo-2-naphthalenyl)diazenyl]-8-[2-[4-(2-phenyldiazenyl)-7-sulfo-1-naphthalenyl]diazenyl]-,sodium salt (1:3), 2-Naphthalenesulfonicacid,5-[(7-amino-1-hydroxy-3-sulfo-2-naphthalenyl)azo]-8-[[4-(phenylazo)-7-sulfo-1-naphthalenyl]azo]-,trisodium salt (9CI),